Added pickup error text

scripts/CSharp/Common/Inventory/ItemOnGround.cs

@@ -5,6 +5,12 @@ public partial class ItemOnGround : Node3D
 {
     private ItemInstance _itemInstance;
 
+    [Export]
+    private bool _infiniteSupply = false;
+
+    private Label3D _itemLabel => GetNode<Label3D>("ItemLabel");
+    private Label3D _pickupErrorLabel => GetNode<Label3D>("PickupErrorLabel");
+
     public ItemInstance itemInstance
     {
         get => _itemInstance;
@@ -22,25 +28,22 @@ public partial class ItemOnGround : Node3D
         var result = InventoryManager.Instance.CollectItem(itemInstance);
         if (result == InventoryActionResult.Success)
         {
-            QueueFree();
+            if (!_infiniteSupply)
+            {
+                QueueFree();
+            }
         }
         else
         {
-            GD.Print("Inventory is full");
-            // TODO: player message
+            _pickupErrorLabel.Text = "Inventory Full";
+            var tween = GetTree().CreateTween();
+            tween.TweenInterval(2);
+            tween.TweenCallback(Callable.From(() => _pickupErrorLabel.Text = ""));
         }
     }
 
     public void UpdateVisuals()
     {
-        var label = GetNode<Label3D>("ItemLabel");
-        if (itemInstance.blueprint != null)
-        {
-            label.Text = itemInstance.blueprint.name;
-        }
-        else
-        {
-            label.Text = "Error Item";
-        }
+        _itemLabel.Text = itemInstance.blueprint?.name ?? "Error Item";
     }
 }